Install/Remove Battery

How to Install or Remove Your Battery

ST/SO 500 and 750X Procedure for installing the battery:

  • Do not force the battery into the opening; slowly align and gently push the battery down into the connector.

  • Make sure there is no space between battery and tray, confirm the battery has been fully secured on the connector.

  • Ensure the battery has been properly secured to the bike before each use by carefully pulling outwards on the battery with both hands once locked. 

ST/SO 500 and FM 750X Procedure for removing the battery:


  • Insert the key and turn to the unlocked position. 

  • Firmly grasp the battery with both hands and slide the battery forward.

  • Then move it down to clear the battery of the frame.

FM 750 Procedure for installing the battery:


  • Check the battery to ensure that the switch is in the off position before starting installation.

  • Install the battery by sliding it into the mounting bracket located on the down tube.

  • Once the battery has been installed, turn the key to engage the locking mechanism.

  • When the locking bolt is engaged the battery will remain firmly fixed in the correct position.

  • Remove the key and store it in a safe/secure location.

FM 750 Procedure for removing the battery:


  • Switch off the battery.

  • Insert the key and turn to the unlocked position to disengage the locking mechanism.

  • Remove the battery by sliding it forward off the mounting bracket located on the down tube.

Follow the steps below to install or remove the battery from any of our Fission Cycles Bikes.


Never use a battery that is cracked or broken. Battery acid is highly corrosive and can cause severe burns! Battery acid can burn you if it contacts your eyes or skin. It can also damage personal property.

Use caution to avoid damage to battery connector terminals, which are exposed when the battery is unlocked and removed from the frame of the bike. In the case of damage to the terminals or battery mounts, please discontinue use and contact Fission Cycles Support immediately.


Note: Remove the battery before attempting to service, adjust, or perform any maintenance on your Ebike. Removing the battery will help ensure the motor does not start inadvertently while service or maintenance is being performed. The battery should be removed anytime the bike is stored or is left unattended to prevent unauthorized use or accidental engagement of the motor. Keep out of reach of children. Failure to remove the battery may result in serious injury or death.

 If you are not confident in your ability to successfully and safely perform all steps, we recommend having the work performed or checked by a local, certified, and reputable bike mechanic.